Need help with 3 pls that’s all

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)